laser

### Laser Probe Toolbox: Laser Scan Properties tab

Probe Toolbox - Laser Scan Properties tab

The Laser Scan Properties tab defines how data from the scan is acquired and whether or not scan lines and feature visualizations appear in the Graphic Display window.

Show/Hide Stripes - This button toggles the display of the laser stripes on the part model. Clicking this button causes the laser scan stripes to appear in real time in the Graphic Display window. PC-DMIS limits how the stripes appear in the Graphic Display window to the distance of the feature nominal plus the Overscan value. The Overscan value controls how much of the stripe is clipped and visible. The graphic below gives an example of how these stripes appear.

Scan features showing stripes

Sound ON/OFF - This button turns the sound on or off. See "Using Sound Events".

Visualization Tools ON/OFF - This button toggles the display of the colored visualization tools. For more information, see "Understanding the Visualization Tools".

Show/Hide Segregated Points - This button toggles the display of those points that will be passed to the feature extractor engine based on the current settings.

Showing segregated points inside a sample Flush and Gap feature

Initialize Probe - This button starts or initializes the laser. You can't do anything with the laser until it is initialized. This takes about 15 seconds. (This button appears on this tab for portable configurations.)

Projector: This button is only available for V5 Perceptron probes on manual arms. Clicking this button turns on a projected grid of red light that shines on the part. This acts like the cross hairs on a target. As you move your probe toward or away from your part, your probe's laser scan line moves through this target. For optimal results, your laser's scan line should line up with the center line of this target. This essentially serves the same purpose as the scan line indicator, which helps you to keep the probe at the optimal height when you measure the part. Since this only functions in manual applications, this icon is disabled if you use the Probe Toolbox within the Auto Feature dialog box.

This actual picture of the Projector shows the rectangular grid-like projection of light. The brighter horizontal line is the laser's scan line.

AutoZoom ON/OFF - This button turns the laser AutoZoom functionality on or off. Whenever you start the scan, AutoZoom dynamically pans, zooms, rotates, and sizes the view containing the laser data in the Graphic Display window to show the incoming data.

Laser Scan Properties for a Leica T-Scan

For a portable Leica T-Scan probe, the Laser Scan Properties tab contains these options:

Probe Toolbox - Laser Scan Properties tab for Leica T-Scan

Point to point distance - This option specifies the distance between two consecutive points in a scan line. The allowed values are between 0.035 mm and 10 mm when you use the up and down arrows.

Line to line distance - This option specifies the distance between two consecutive scan lines. The allowed values are between 0 mm and 50 mm when you use the up and down arrows.

Use Angle of incidence - This option specifies which maximum allowed angle is used for scanning. This value helps avoid bad conditions while scanning (surface reflections, geometry, and so on). This angle is the angle between a ray and the surface normal vector. Allowed values are between 0 and 80 degrees when you use the up and down arrows.

- If you select the check box to the left of the box, PC-DMIS sends the angle value in the field.

- If you clear the check box, PC-DMIS sends a 90-degree angle to the dispatch interface. Typing a value of 90 degrees is the same as clearing the check box.

Initialize Scanner - This icon starts the T-Collect software and initializes the scanner using the values defined in this tab.

Apply - This button applies the values defined in this tab without stopping the scanner.

You can override the limitations with the up and down arrows, or enter a value directly into any of the boxes. However, your machine rejects invalid values and forces them to a valid number.

Other Properties

Other possible properties for this tab are:

- Sensor Frequency

- Row Overlap

- Overscan

- Exposure

- Point Cloud

- Gain (for CMS Sensors)

- Scan Zoom States (for CMS Sensors)